Ukubaluleka kwemithi ekubanjweni kwe-CO2 kunye neBalance of the Planet

  • Imithi ngawona mahlakani ekufunxa i-CO2 kunye nokunciphisa ukufudumala kwehlabathi.
  • Ukutshatyalaliswa kwamahlathi kutshabalalisa ibhalansi yomjikelo wekhabhoni, okuchaphazela ukutshintsha kwemozulu.
  • Izenzo ezinjengokutyalwa ngokutsha kwamahlathi kunye nokunciphisa izinto ezikhutshwa ngumntu zibalulekile ekukhuseleni umhlaba.

imithi yehlabathi iimpawu kunye nokubaluleka

Imithi ibalulekile ekuncedeni ukunciphisa utshintsho lwemozulu, njengoko benobuchule obukhethekileyo bokufunxa ikharbon diokside (CO2) kwiatmosfera. Le gesi yenye yezona zinto zibangela ukufudumala kwehlabathi kunye nokunciphisa kwayo kubalulekile ukuphepha iziphumo ezibi kakhulu kwixesha elizayo. Kodwa yiyiphi indima edlalwa yimithi namahlathi kule nkqubo? Ngezantsi, siza kukhangela indlela imithi enceda ngayo ukubamba i-CO2 kunye nento esinokuyenza ukukhusela iplanethi yethu.

Ukubaluleka kwemithi ukufunxa iCO2

Imithi, ngephotosynthesis, ibamba iCO2 emoyeni ize iyiguqule ibe yioksijini. Le nkqubo ibalulekile kungekuphela nje ngenxa yokuba icoca umoya esiwuphefumlayo, kodwa kuba inceda ekunciphiseni impembelelo yezinye iigesi zegreenhouse. Enyanisweni, kuqikelelwa ukuba umthi oqhelekileyo unokucoca umoya ophakathi kwama-20 nama-45 eekhilogram zomoya ngonyaka, kuxhomekeka kuhlobo nobukhulu bawo.

ukubaluleka kwemithi ukufunxa i-co2

Okubalulekileyo, imithi emincinci idla ngokuthatha i-CO2 eninzi ngelixa ikhula. Nje ukuba bafikelele ekuvuthweni, ukukwazi kwabo ukufunxa ikhabhoni kuyehla ngokuthe ngcembe, nangona bahlala bebalulekile kumjikelo wekhabhoni yehlabathi. Ihlathi eliqolileyo likwasebenza njenge isinki yekhabhoni, egcina izixa ezikhulu kwi-biomass kunye nomhlaba.

Ingakanani i-CO2 efunxa imithi?

Amandla okuhluthwa kwekhabhoni yomthi axhomekeke kwizinto ezininzi, ezifana nodidi lweentlobo, imozulu kunye neemeko zomhlaba. Ngokwezifundo, ihektare enye yehlathi inokuqulatha amakhulu emithi, kwaye ezinye iintlobo zinokufunxa ukuya kuthi ga kwi-150 kg ye-CO2 ngonyaka. Oku kuthetha ukuba iindawo ezinkulu ezinamahlathi zinokudlala indima ebalulekileyo ekudambiseni utshintsho lwemozulu.

Umntu oqhelekileyo wenza malunga ne-3,9 yeetoni ze-CO2 ngonyaka ngenxa yemisebenzi efana nokuthutha, amandla asetyenziswa ekhaya, kunye nokusetyenziswa kweemveliso ezifuna iinkqubo zemizi-mveliso. Ukuchasana nale nto, ngokwezifundo ezahlukeneyo, malunga nemithi ye-67 umntu ngamnye iya kufuneka, ebeka kwindawo enkulu yamahlathi esifuna ukuwatyala kunye nokukhusela ukuze sifezekise ukulingana.

Inkqubo ye-photosynthesis kunye nobudlelwane bayo kunye nokufunxa kwe-CO2

Inkqubo ye-photosynthesis yeyona injini ivumela izityalo ukuba zibambe i-CO2. Imithi ithatha ikharbon diokside emoyeni ngemingxunya emincinane emagqabini yayo, ebizwa ngokuba yistomata, ize iyidibanise namanzi ewafunxa ezingcanjini zayo. Ngoncedo lokukhanya kwelanga, baguqula le ngxubevange ibe yiglucose, abayisebenzisela ukukhula, ngoxa bekhupha ioksijini njengemveliso ephuma emoyeni.

inkqubo ye-photosynthesis yemithi

Ngokusebenzisa iphotosynthesis, imithi kunye nezinye izityalo eziluhlaza zizinzisa amanqanaba ekhabhoni emoyeni, zinceda ukugcina ulungelelwaniso olufanelekileyo lweegesi. Ukongeza ekusebenzeni njenge-carbon sinks, zandisa i-biodiversity ngokukhuthaza intsebenziswano kunye nezinye izinto eziphilayo kwi-ecosystem.

Indima yamahlathi ekunciphiseni utshintsho lwemozulu

Kubalulekile ukuqonda ukuba imithi ayisebenzi yodwa. Amahlathi, ewonke, angamaqabane anamandla ekulweni nokutshintsha kwemozulu. Ngokwezifundo ezahlukeneyo, amahlathi ehlabathi aqikelelwa ukuba afunxa malunga ne-7,6 yeebhiliyoni zeetoni zeCO2 ngonyaka. Nangona kunjalo, ngokugawulwa kwamahlathi kunye nemililo yasendle, sikhulula isixa esikhulu sekhabhoni eqokelelweyo kwi-atmosfera kwaye, kwangaxeshanye, sinciphisa amandla okuhluthwa kwekamva.

ukugawulwa kwamahlathi ukukhutshwa kwekhabhoni

Yiyo loo nto kubalulekile ukuba kupheliswe ukugawulwa kwamahlathi nokukhuthaza ukubuyiswa kweendawo ezonakeleyo ngokuphinda kutshatyalaliswe amahlathi. La manyathelo akancedi kuphela ukufunxa i-CO2 engaphezulu, kodwa akwaphucula izinto eziphilayo ezahlukeneyo, abonelele ngeendawo zokuhlala kwiintlobo ezisengozini yokuphela kwaye alawule umjikelo wamanzi eplanethi.

Ukutshatyalaliswa kwamahlathi kunye neempembelelo zawo kwi-carbon balance

Ngelishwa, ukukwazi kwemithi ukufunxa i-CO2 kuyehla ngenxa ukwanda kokugawulwa kwamahlathi, echaphazela amahlathi ashinyeneyo nanemozulu epholileyo. Ukugawulwa kwemithi akutshabalalisi nje kuphela iindawo zokuhlala, kodwa kuguqula imithi egawulweyo ibe yimithombo yokukhutshwa kwezinto ezikhutshwayo xa itshisiwe okanye ibola kancinane, ikhupha ikhabhoni ebikade igcinwe kwizakhiwo zayo.

Kuqikelelwa ukuba malunga ne-15% ye-CO2 ekhutshwa minyaka le kwihlabathi liphela ivela ekugawulweni kwamahlathi, nto leyo eyenza ibe yenye yezona zinto ziqhuba utshintsho lwemozulu. Ukugcina amahlathi asele ekho nokukhuthaza ukuhlaziywa kwamahlathi ngeentlobo zezityalo zomthonyama kufanele kube yinto ephambili yehlabathi.

Iintlobo zemithi ezinowona mthamo uphezulu weCO2 wokufunxa

Ezinye iintlobo zemithi, ngenxa yokukhula kwazo ngokukhawuleza kunye nobukhulu, zinamandla amakhulu okufunxa ikhabhoni xa kuthelekiswa nezinye. Phakathi kwazo, i-eucalyptus ivelele, ekwazi ukugcina ukuya kwi-150 kg ye-CO2 ngonyaka, kunye ne-stone pine, esebenza kakuhle kakhulu ekubambeni ikhabhoni kwiindawo ezipholileyo.

Ngakolunye uhlangothi, imithi efana ne-willows kunye neepopulari nazo zithandwa ngenxa yesantya sokukhula kunye nokukwazi ukubamba inani elikhulu lekhabhoni kwiindawo ezinomswakama. Kubalulekile ukutyala iintlobo ezichanekileyo ngokwemozulu kunye neempawu zomhlaba zommandla ngamnye ukuze zikwazi ukusebenza kakuhle.

Kukwabalulekile ukuthathela ingqalelo ulondolozo lweentlobo zendalo, ekubeni ezi ntlobo zezityalo ziqhelana bhetele nemekobume yendawo kwaye zidlala indima ebalulekileyo ekugcineni ulungelelwano lwendalo lwenkqubo yokuphilisana kwezidalwa.

iimpawu zemithi ye baobab kunye nenkathalo

Izenzo zokunciphisa unyawo lwethu lwekhabhoni

Ukuhlaziywa kwamahlathi akukuphela kwesisombululo kwingxaki yokutshintsha kwemozulu. Kukwabalulekile ukuba sinciphise ezethu izinto ezikhutshwayo zeCO2. Ukunciphisa ukusetyenziswa kwamafutha efosili, ukukhetha amandla avuselelekayo, ukuphucula amandla ombane amakhaya kunye nokukhuthaza uthutho oluzinzileyo ngamanyathelo aphambili, kunye nokutshalwa kwamahlathi, kuya kusinceda ukunciphisa kakhulu i-carbon footprint.

Ngaphezu koko, izenzo ezincinci, njengokutyala umthi, zingenza umehluko. Ngokwenza njalo, awuyi kuba negalelo kuphela ekubanjweni kwe-CO2, kodwa uya kunceda ukuphucula i-biodiversity kunye nomgangatho womoya kwindawo yakho.

Ukukhusela amahlathi ethu kunye nokukhuthaza ukutshalwa kwamahlathi, kudibaniswa nokunciphisa ukukhutshwa kunye nokutshintsha kwimikhwa yethu, yinto ebalulekileyo yokuhlangabezana nomngeni wokutshintsha kwemozulu kunye nokuqinisekisa ikusasa elizinzileyo.


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